New offgrid system

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Re: New offgrid system

Postby australsolarier » Sun Dec 02, 2018 8:16 am

i was just in contact with Rod from ev-power. the the new bypass circuit boards are now bypassing at 3.5V. this solved one of the major disadvantages of the blue ev-power box.
at the moment i don't think i would trust the batrium any other than bypassing and having a visible interface of the cell voltages on a computer screen.
the old cell wires still keep on failing on my system. they either totally disconnect, having cold contact flickering or showing lower than real voltage. when a cell wire disconnects, the main board is nonoperational and would not disconnect the battery in an emergency. none of the new cell wires have disconnected so far. so there is hope for batrium.
compare this with the ev-power blue box, just plug in the data wires and connect the blue box and it works. super easy. but no monitoring and adjusting of cell bypassing voltages.
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Re: New offgrid system

Postby offgridQLD » Sat Mar 30, 2019 7:07 pm

To date I haven't given wind turbine's much consideration. As a gentle breeze was about all we got is SEQ. Though after spending a year In my new location in SA with my weather station mounted around 5m height. I'm finding a considerable number of days have average wind speeds over the day of 40kph at times gusts of 80kph max. open paddock with a nice rolling hill that the shed sits on the high side.


So rather than getting P*** off when its blowing a SE gale all day and night. Perhaps I should put a + spin on the crap weather and at least get my house battery bank topped off over night. Or on a pea soup PV day as it usually coincides with a stiff wind.

Experimenting with a small 600w turbine next week. Rated at 600w at 39.6kph wind speed. Will report back when I get if its lives up to its ratings. I sure have the winds to support it. that said even a few hundred watts sustained overnight is a handy thing.
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Re: New offgrid system

Postby australsolarier » Sun Mar 31, 2019 6:35 am

will be interesting to hear your results. and yes a combination solar and wind is excellent, as long as there is wind.
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